Anchoring: General information:

When choosing the type of anchoring you have to attend several criterions:

  • definition of the diameter of the anchor bar regarding the existing traction load
  • definition of the anchor type according to the space possibilities in the foundation or in the base plate.

With the help of the following technical descripitons you find the fitting solution for each anchoring situation.

Anchor nut

At straight tie rods the anchor nut is used. The anchoring ot the traction loads results in the big plate, which is screwed on to the lower end of the tie rod.
This anchor type can be cut out of the normal tie bars to the according length. The length depends on the traction load, the diameter of the tie rod and the actual strength of the concrete.

In praxis the following empirical values have been approved:
Ø 15.0 mm - length of tie rod  500 mm
Ø 20.0 mm - length of tie rod  700 mm
Ø 26.5 mm - lenth of tie rod 1000 mm

The subsequent installation through the upper reinforcement layer is possible without problem. A further advantage which can only be used with this system is the possibility to recover the tie rod after using. For that you only have to install a plastic tube between anchoring nut and the installation help (V-holder and anchor holder L).

 

Anchor nut

for D&W-tie rods

Item No. Ø [mm] Height [mm] Adm. load [kN]
511573 15,0 60 95
512055 20,0 65 160
512654 26,5 70 300
TECHNICAL DATA

Wobble anchor

The anchoring in the concrete results in the profiling of the corrugated tie bar. An additional anchor plate or anchor nut is not necessary. The subsequent installation through the upper reinforcement layer is possible without problem.

 

Wobble anchor

raw material

Item No. Ø [mm] Length [mm] Adm. load [kN]
511597 15,0 550 90
512059 20,0 700 150
512660 26,5 800 250
TECHNICAL DATA

Hook anchor

The anchoring in the concrete results in the profiling of the bent anchoring bar.
An additional anchor plate or anchor nut is not necessary. Only with the short version of the hook anchor Ø 15.0 mm for thin base plates we recommend the addition of a transverse bar into the bent loop on the part of the builder.
The subsequent installation through the upper reinforcement layer is possible by mounting of the hook.

 

Hook anchor

raw material

Item No. Ø [mm] Length [mm] Adm. load [kN]
511595 15,0 250 85
511596 15,0 450 85
512058 20,0 600 150
512658 26,5 800 250
TECHNICAL DATA

Loop anchor

It is optimum usable, if the thickness of the base plates is in the correct relation to the length of the inclined ends of the tie rods: the installation is done by placing on and racking of the bent loop on the lower reinforcement layer. In one working step 2 anchoring bars are installed without further accessories.

 

Loop anchor

raw material

Item No. Ø [mm] Adm. load [kN]
511594 15,0 2 x 85
512057 20,0 2 x 150
512659 26,5 2 x 240
TECHNICAL DATA